TX TPH Calibration Standard (High End) Back Catalog number: 95155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2622.33-50-IO 17 alpha(H),21ß(H)-(22RS)-Trishomohopane , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 54340-13-5 Price on request 70443 Methyl methane sulfonate Price on request 12114.4-10MG Metformin-d6 hydrochloride (dimethyl-d6),neat,neat,10mg, Price on request